glibc/sysdeps/unix/sysv/linux/not-errno.h
Paul Eggert 581c785bf3 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

48 lines
1.6 KiB
C

/* Syscall wrapper that do not set errno. Linux version.
Copyright (C) 2017-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <fcntl.h>
/* This function is used on maybe_enable_malloc_check (elf/dl-tunables.c)
and to avoid having to build/use multiple versions if stack protection
in enabled it is defined as inline. */
static inline int
__access_noerrno (const char *pathname, int mode)
{
int res;
#ifdef __NR_access
res = INTERNAL_SYSCALL_CALL (access, pathname, mode);
#else
res = INTERNAL_SYSCALL_CALL (faccessat, AT_FDCWD, pathname, mode);
#endif
if (INTERNAL_SYSCALL_ERROR_P (res))
return INTERNAL_SYSCALL_ERRNO (res);
return 0;
}
static inline int
__kill_noerrno (pid_t pid, int sig)
{
int res;
res = INTERNAL_SYSCALL_CALL (kill, pid, sig);
if (INTERNAL_SYSCALL_ERROR_P (res))
return INTERNAL_SYSCALL_ERRNO (res);
return 0;
}